Really outstanding! Thanks!

Almost everyone suggested "map" which seems obvious to me now. "map" creates a list by operating on each element of another list. In this case, the "operation" is to expand the wildcards and/or convert the binary-to-decimal.

Using "glob" to convert the wildcards was really clever. I didn't know about using "oct" for binary either! These are bit-vectors, so Bit::Vector is useful in other ways.

Thanks Again!